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• <br /> Justification <br /> The original operational water monitoring activities conducted on the <br /> Kerr Mine Area extended and verified the baseline monitoring record <br /> contained in the 1980 application for State Mining Permit No. C-006-80. <br /> The rigorous hydrologic monitoring program originally in place was <br /> modified to more effectively address phased mine development, especially <br /> in undisturbed areas where most of the initial monitoring sites were <br /> located. With Kerr limiting operations under currently permitted plans to <br /> the Kerr south area, further modification of the current phased monitoring <br /> plan is appropriate. <br /> Kerr Coal Company hereby requests a revision to its water monitoring <br /> plan. The proposed plan, which follows, will serve its designated purpose <br /> (to monitor the effects of mining on the hydrologic balance) both for the <br /> short and long term. <br /> A general description of the plan is presented, followed by a listing <br /> of sites and maps which enumerate the details of the plan. <br />• <br /> General Description <br /> The general approach of this revised water monitoring plan is to <br /> monitor only those sites which may be affected by mining operations. <br /> Please note that no changes are proposed with respect to the annual <br /> schedule or procedures. Water monitoring activities at the Kerr Tipple <br /> Area are unaffected by this plan and will remain the same as in the past. <br /> The modified plan will only eliminate monitoring of those sites located in <br /> unaffected areas. <br /> Based upon the projected drawdown of the coal aquifer described on <br /> page 780-114aa of the permit document, little, if any, affect will be <br /> noticed more than 2,000 feet in advance of the active mining area; <br /> therefore, ground water monitoring activities will extend from the <br /> southern permit boundary to 2,000 feet beyond the disturbance defined for <br /> each phase. Similarly, surface water and alluvial well monitoring for <br /> each phase will be conducted in all areas from the southern boundary <br /> northward, but will extend only to the area immediately adjacent to and <br />• downstream from disturbance. <br />23-175 <br />